baber/WOPTO huggingface dataset:
Patent GB-1233410-A (GB)
IPC: G05D3/12
Filed: 1968-10-07
Abstract: 1,233,410. Electric selective signalling. GENERAL ELECTRIC CO. 7 Oct., 1968 [22 Dec., 1967], No. 47485/68. Heading G4H. To generate the sine and cosine of an input angle # the magnitude of which is measured as a number of pulses ##, each representing an increment of change of the angle, sine and cosine registers 11, 13 preset to sin # 0 , cos # 0  respectively (Fig. 1) are incremented or decremented by each pulse (if a carry signal #KC, #KS exists from cos and sin accumulators 17, 15) under the control of a polarity circuit 19 to    i-1 form sin # i =sin # 0  + # K cos # i , cos # i  =     i-1 cos # 0  + # K sin # i  and accumulators 15, 17 are       i-1 updated by adding to the numbers #K sin #, i-1 # K cos # stored therein K times the contents          i of the associated register to form # K sin #, i # K cos #. In the embodiment of Fig. 1 each pulse ## results in two time displaced pulses ##<SP>1</SP>, ##<SP>11</SP> (Fig. 6, not shown), being distributed to the registers and accumulators, ##<SP>1</SP> leading ##<SP>11</SP> in alternate cycles so that if after n pulses the new sine value is computed using the stored values of sin # and K cos #, and the new sine value is used to compute the new cosine value, after n + 1 pulses the new cosine value is computed using the stored values of cos # and K sin # and the new cosine value is used to compute the new sine value. The polarity circuit 19 receives the ##<SP>1</SP>, ##<SP>11</SP> pulses, a direction signal 109, a zero reference signal and signals when the cosine and sine registers are full, i.e. when the input angle changes quadrant to generate an add/subtract signal 133 to the registers and accumulators and also polarity signals which give the quadrant. The registers are counters (Fig. 3, not shown) giving binary coded outputs to the associated accumulators and also deriving an analogue output via a resistor network (55). After multiplication by a factor K the coded outputs of registers 11, 13 are added to the contents of accumulators 15, 17. In the alternative embodiment of Fig. 8 in which a " look ahead " technique is used, each ## pulse is applied direct to the sine and cosine registers, but with each alternate ## pulse, the carry output of the sine and cosine accumulators #KS, #KC is looked at in AND gates enabled alternately by a bi-stable 161 receiving the ## pulses, the outputs of the AND gates being examined together with the add/subtract signal on lead 133 to determine whether the least significant bit 167, 169 of the registers 11, 13 should be modified before being entered into the associated accumulator.
Patent GB-1234521-A (GB)
IPC: B21D5/04
Filed: 1969-09-03
Abstract: 1,234,521. Angular bending. KEETON SONS & CO. Ltd. 3 Sept., 1969, No. 43601/69. Heading B3E. A folding brake comprises a vertically movable hold-down ram (not shown) carrying a tool 10, Fig. 2, of required cross-section, two support members 18, 19 angularly movable in opposite senses from a position in which they are in abutting relationship to a spaced relationship, forming members 16, 17 mounted on respective suport members 18, 19 and means for actuating the ram and the support members, co-operating faces of the ram tool 10 and the forming members 16, 17 serving to produce, in any one operation of the folding brake, at least two bends in a sheet metal element 11 disposed between the tools. In one embodiment an elongate semi-cylindrical floating member 12 is positioned beneath the ram tool 10. In a second embodiment to form closely positioned profiles 53, an additional portion of square section is superimposed on the semi-cylindrical section, and the non-operative rear face of one of the forming members 51 is recessed (Fig. 10). In a third embodiment the member 12 is replaced by a pair of pointed projections 60, 61 (Fig. 11).
Patent GB-1237996-A (GB)
IPC: C23C22/13
Filed: 1970-03-09
Abstract: 1,237,996. Phosphating electro-galvanised surfaces. PYRENE CO. Ltd. March 9, 1970 [March 7, 1969], No.11216/70. Heading C7U. Phosphate coatings of 50-200 mgms. /sq. ft. are formed on electrogalvanised surfaces, e.g. steel, by treating with a zinc acid phosphate solution containing 0À001-0À02% wt. NO 3  ions. Preferred solutions contain 0À12-0À5% Zn, 0À5-2À2% PO 4 , 0À005-0À015% NO 3 , up to 0À036% Ni and total acidity 7À5-30 points. Preferred temperature is 38‹ -60‹ C. and contact time 2-45 secs. Coated product is water rinsed and then rinsed in aqeuous hexovalent Cr as CrO 3 ,
Patent GB-1239328-A (GB)
IPC: C03C10/00
Filed: 1969-08-26
Abstract: 1,239,328. Crystallizable glaze compositions for glass-ceramics. HERCULES Inc. 26 Aug., 1969 [27 Aug., 1968], No. 42541/69. Heading C1M. A crystallizable glaze for decorating glassceramics consists essentially of in percentages by weight: SiO 2  45-65; Al 2 O 3  12-25; Li 2 O 16-25; B 2 O 3  0-8; As 2 O 3  0-4 and at least one nucleating agent present in an amount in excess of its solubility limit in the composition at top firing temperature and sufficient to provide nuclei for crystallization upon cooling. The preferred nucleating agents are ZrO 2  5-19; TiO 2  1-10 and/or SnO 2  0À02-7. A number of colouring oxides are suggested and a number of examples given. The compositions give glazes with corresponding coefficients of thermal expansion to a number of glass-ceramic substrates.
Patent GB-1256536-A (GB)
IPC: F27B7/32
Filed: 1968-12-03
Abstract: 1,256,536. Rotary kilns. CREUSOT-LOIRE. 3 Dec., 1968 [8 Dec., 1967], No. 57266/68. Heading F4B. A rotary cement kiln 1 is surrounded by a stationary cover 6 formed from two annular side walls 7 and a peripheral member 8. Graphite lubricated rollers 9 mounted on reinforcement members 10 secured to the cover side walls 7 roll against tracks 11 extending circumferentially over the exterior of the kiln, this resilient mounting of the cover allowing it to take up any deformations over the kilns circumference as the latter rotates. The cover itself is prevented from rotating by member 14. Resilient gaskets 12 secured to the side walls 7 bear against the inner or outer edges of circumferential ribs 13 secured to the kilns exterior to seal the space within the cover from the atmosphere. Steel tubes 4 extend through the kiln lining 2. They may be used to transfer air or gases from the interior of the cover to the interior of the kiln, or vice versa, or to charge cement dust, introduced into the space within the cover from pneumatic or screw feeder 18, the dust being picked up by the scoop ends 5 of the tubes 4 as the kiln 1 rotates. A cover discharge aperture 20 and tube cleaning apertures 21, 22 in the cover 6 and the tubes 4 respectively are also provided. The tubes 4 may be provided with valves (not shown) to control the passage of gases therethrough.
Patent GB-1258501-A (GB)
IPC: H02G3/32
Filed: 1969-02-13
Abstract: 1,258,501. Cable support; clips. BPB INDUSTRIES Ltd. 13 Feb., 1969, No. 7957/69. Heading H2C. A cable 17 is supported on a metal framework e.g. a channel section 11, by holding means 16 of a clip (15) engaging with lips 12 of member 11 through grooves 23 of resilient legs 14. The holding means may be modified to hold more than one cable (Fig. 3, not shown) and the clip may be a plastics extrusion or of insulated spring steel.
Patent GB-1264760-A (GB)
IPC: F16L59/02
Filed: 1970-03-25
Abstract: 1,264,760. Coated articles. AMCHEM PRODUCTS Inc. 25 March, 1970 [28 March, 1969], No. 14378/70. Heading B2E. [Also in Divisions F2 and F4] A layer of thermally insulating material is secured to the exterior of a pipe or storage vessel by means of spaced bands, the inner surfaces of which bear on the outer surface of the layer, and a continuous synthetic elastomeric coating is applied to the outer surface of the secured layer so as to embed the bands. Further bands may surround and be partially embedded in the coating. The layer may be of a number of shaped blocks of calcium silicate, fibrous glass, polyurethane or polystyrene. Pressure-sensitive adhesive tape may cover joints between the blocks. The coating may be sprayed on or applied with a trowel and may comprise ethylene/vinyl acetate copolymer water or an organic solvent, and pigment, binder, filler, plasticiser, fire retardant material and preserver.
Patent GB-1290337-A (GB)
IPC: B65B69/00
Filed: 1969-04-02
Abstract: 1290337 Bag slitting machines SIMON HANDLING ENGS Ltd 18 March 1970 [2 April 1969] 17261/69 Heading B8C In a bag slitting machine the ends of a bag are engaged by spiked plates 10, 11 so that the bag is supported above a hopper 12, a pair of blades 19, 20 on which the bag is impaled are separated to slit the bag and the plates 10, 11 are pivoted towards and away from each other a plurality of times by a pneumatic cylinder 16 in order to empty the bag. After bag-slitting, a stirrup 29 is pivoted by a cylinder 30 to impact on the upper surface of the bag to cause the bag contents to flow and is then withdrawn. After the bag has been emptied a further stirrup 31 is pivoted by a cylinder 32 to throw the bag from the machine. The bag is first placed on a loading table 25 and actuates a microswitch 26 to start the machine. The table 25 is then pivoted by a pneumatic cylinder 27 to throw the bag on to the plates 10, 11.
Patent GB-1295228-A (GB)
IPC: C07H19/16
Filed: 1971-07-08
Abstract: 1295228 Adenosine derivatives BOEHRINGER MANNHEIM GmbH 8 July 1971 [14 July 1970] 32182/71 Heading C2C Novel compounds of Formula I (in which each of R 1  and R 2  is H, OH, NH 2 , C 1-6  alkyl, C 2-6  alkenyl, optionally N-alkylated C 1-6  aminoalkyl, cycloalkyl, hydroxyalkyl or piperidino or R 1  and R 2  together represent a C 4-7  alkylene radical which can be interrupted by an oxygen or sulphur atom or an imino, alkylimino or arylimino radical and Z represents two hydrogen atoms or a C 2-6  alkylidene radical) and pharmacologically compatible acid addition salts thereof, are prepared by reacting a reactive derivative of a carboxylic acid of the Formula II with a compound of formula R 1 -NH-R 2  and optionally converting the product obtained into a pharmacologically compatible acid addition salt. 2<SP>1</SP>,3<SP>1</SP> - o - Isopropylidene - adenosine - 5<SP>1</SP> - carboxylic acid chloride is prepared by reacting the corresponding acid with thionyl chloride. Pharmaceutical compositions for oral or parenteral administration, comprise a compound of Formula I or a pharmacologically acceptable acid addition salt thereof, together with a pharmaceutical carrier or diluent. The active compounds exhibit a strong circulatory activity.
Patent GB-1297838-A (GB)
IPC: C04B35/44
Filed: 1970-09-21
Abstract: 1297838 Chromite granules; refractories OSTERREICHISCH - AMERIKANISCHE MAGNESIT AG 21 Sept 1970 [19 Sept 1969] 44888/70 Headings C1A and C1J Chromite granules suitable for use in refractories are obtained from fine grained chromite of particle size 0 to 2 mm., by mixing with a binder and agglomerating, the agglomerates being disintegrated to desired size when they have set. Agglomeration may be achieved by pressing, when chromite used has maximum particle size of 2 mm., or by pelletizing when maximum particle size is 0À2 mm. Binders specified are sulphite-cellulose liquor, or waste liquor evaporation residue, synthetic resins such as phenolic, furfural, or polyester resins, moulding sand oil, tar or pitch, and also substances forming magnesia cement compounds with caustic magnesia, e.g. MgSO 4 , magnesium phosphate, H 2 SO 4  or chromic acid, and phosphoric acid, phosphates, or polyphosphates. The chromite granules are used to produce refractory bricks having properties equivalent to bricks produced using lump chromite ore. In one example (4) a mixture of 22% chromite granules and 68% magnesite is briquetted and the briquettes disintegrated. From the product a mixture of particles in the size ranges 0À3- 3 mm. (67%) and 0-0À12 mm (38%) was pressed to form bricks (a) with 4% saturated kieserite and (b) with 4% saturated kieserite and 5% sintered magnesia of particle size less than 0À12 mm. Details of the properties of the bricks re. strength, density &c. are given. In a second example bricks having the following composition are prepared and their properties disclosedmagnesia (0À3-3À0 mm.) 40%; magnesia (0-0À3 mm.) 10%; magnesia (0-0À12 mm.) 30%; chromite granules (0À3-3À0 mm.) 20%.
Patent GB-1301555-A (GB)
IPC: C07D277/54
Filed: 1970-07-16
Abstract: 1301555 Thiazolidinoae thio-semicarbazone CIBA-GEIGY 16 July 1970 [17 July 1969] 34425/70 Heading C2C [Also in Division A5] 3 - Allyl - 5 - methyl - 2,4 - thiazolidinedione - 2 - (4 - allyl - 3 - thiosemicarbazone) of the formula is prepared from 3 - allyl - 5 methyl - 2,4- thiazolidienedione - 2 - hydrazone (II) and allylisothiocyanate. The hydrazone starting material (II) is prepared through the following: 1 - acetyl - 4 - allyl - 3 - thiosemicarbazide 3 - ally - 5 - methyl - 2,4 - thiazolidinedione - 2- (2 - acetylhydrazone) and (II) HCl.
Patent GB-1302358-A (GB)
IPC: G11B15/44
Filed: 1970-05-05
Abstract: 1302358 Transporting tapes L G WHITE 5 May 1971 [5 May 1970] 21569/70 Heading G5R In a variable speed reversible tape transport system, a first electric motor (5, Fig. 2, not shown) operates to drive a capstan 25 either slowly or quickly, a friction wheel 43, Fig. 3, being movable to connect the small portion 42a of motor wheel 42 with the large portion 40a of capstan flywheel 40 (as shown in Fig. 3), or to connect the large portion 42b of wheel 42 with the small portion 40b of flywheel 40 (as in Fig. 5, not shown), as desired. A second electric motor (4, Fig. 2) operates to drive a spool carrier 8, Fig. 1, either slowly or quickly for slow or quick wind up of tape, or alternatively to drive a spool carrier 9 quickly for rapid tape re-wind, a wheel 63 moving to drive carrier 8 via an intermediate wheel 64, or driving carrier 9 directly, and the power applied to the motor being varied, as desired. Control logic circuit details are given.
Patent GB-1309749-A (GB)
Title: Treatment of clays
IPC: C08K3/00
Filed: 1969-05-16
Abstract: 1309749 Bleaching of clays ENGLISH CLAYS LOVERING POCHIN & CO Ltd 12 May 1970 [16 May 1969] 25216/69 Heading C1A Clay is bleached by being contacted, as a dry or substantially dry particulate mass, with a gas comprising ozone. The clay may contain up to 15%, preferably 1-5%, water, and should be ground so as to consist of particles smaller than 5Á equivalent spherical diameter. The gas may be ozonized air or oxygen, containing from 0À1- 15% v/v. O 3  and is passed at the rate of from 100-2000 ml./min./100 gm. clay, for 5-60 min. at 10-30‹ C. The bleaching is preferably performed in a fluidized bed apparatus.
Patent GB-1311094-A (GB)
Title: Machine and process for digging undergrojnd galleries
IPC: E21D9/11
Filed: 1969-03-25
Abstract: 1311094 Reciprocating and endless conveyers M DUBOIS 24 March 1970 [25 March 1969 15 Dec 1969] 15687/69 and 60977/69 Heading B8A [Also in Division E1] In a machine for digging underground galleries (see Divisions E1-E2) including pillars 36, cut material on the floor of the gallery is moved by scrapers on the lowermost rotatable tool-holders up slopes 37 into circular bins 35 arranged around the pillars, a scraper 38 having a reciprocatory rotary motion operating in each bin to move the material from the bin over two ramps 41, 42 to a conveyer 40 feeding a further conveyer 43.
Patent GB-1311192-A (GB)
Title: Windows with insulated sashes
IPC: E06B1/58
Filed: 1970-04-03
Abstract: 1311192 Window with insulated sash R R HEIKEL 3 April 1970 15838/70 Heading E1J A window includes a metal main frame 1 attachable to a wall 2 and a metal sash 5 carrying at least one window pane attached to the frame 1 preferably by hinges on the lower rail so that in the closed condition of the window the openings in the frame and sash coincide, together with a heat insulating strip 10 of closed cell foam rubber, foam plastics or wood fitted between the frame and sash around the entire window at least the exposed surfaces of the strip 10 being covered by a water and air impervious material 10a, 10b. The strip 10 is sealingly attached to the frame 1 and the glazing stop 7 of the sash is provided with ribs 11 and/or grooves 12 to make the insulation more effective. When a double glazing unit is used the inner edges of the spacer strip 8c and the inner edges of the glazing stops 6, 7 are in alignment with the inner edge of the frame 1. As shown the main frame 1 is heat-insulated from the wall 2 by a closed cell plastics strip 3 which is covered by water- and air-impervious material 4. Both the main frame and sash may be of steel or light metal.
Patent GB-1314023-A (GB)
Title: Polymerisation process
IPC: C08F279/02
Filed: 1969-09-09
Abstract: 1314023 Toughened polyvinyl aromatic compositions BP CHEMICALS Ltd 17 Aug 1970 [9 Sept 1969] 44535/69 Heading C3G A toughened polyvinyl aromatic composition comprising polyvinyl aromatic compound and a rubber mixture of at least 50% by weight of polybutadiene having a cis 1,4 content of more than 90% mol. and not more than 50% by weight of polybutadiene having a cis 1,4 content of 10 to 50% mol. may be prepared by polymerizing a solution of the two rubbers in a vinyl aromatic monomer until phase inversion occurs, forming a stabilized aqueous suspension of the polymerization mix and continuing polymerization. Acrylonitrile may be present in the solution polymerization stage. In examples, a solution in styrene of two polybutadienes and polystyrene is polymerized in the presence of water. After phase inversion polyvinyl alcohol/calcium phosphate suspending agent is added and polymerization is continued.
Patent GB-1315856-A (GB)
Title: Flow restrictors
IPC: F23R3/04
Filed: 1970-03-20
Abstract: 1315856 Gas turbine engine combustion equipment DEFENCE SECRETARY OF STATE FOR 19 April 1971 [20 March 1970] 13576/70 Heading F1L The invention relates to a flow restrictor for use in combustion chamber of a gas turbine engine. The flow restrictor comprises a plurality of tubes each tube being so dimensioned that air flow therethrough changes from laminar to turbulent or vice versa over a predetermined range of Reynolds number. The combustion chamber shown comprises an outer casing 1 and an inner flame tube 2, the flame tube having air inlets 4, 6, 7 and assemblies of tubes 8 are disposed in these inlets. The tube assemblies may comprise packs of tubes 9 secured together as shown in Fig. 3; alternatively plain and corrugated sheets 10, 11 may be secured together so as to define passages or tubes 12 as shown in Fig. 4; alternatively corrugated sheets may be secured together directly to form the passages or tubes. The predetermined range of Reynolds number is such that when the flow restrictor is in use in a combustion chamber of an aircraft gas turbine engine the airflow therethrough is turbulent when the engine is running at normal operating conditions and becomes laminar when the engine is extinguished during flight of cruising altitude.
Patent GB-1319455-A (GB)
Title: Skin preparations
IPC: A61Q19/02
Filed: 1969-11-17
Abstract: 1319455 Skin lightening preparations UNILEVER Ltd 10 Nov 1970 [17 Nov 1969] 56162/69 Heading A5B A skin lightening preparation contains 1%-10% by weight of hydroquinone, 1%-5% by weight of ascorbyl palmitate and 0.1%-2% by weight of 2,2',4,4'-tetrahydroxybenzophenone.
Patent GB-1322493-A (GB)
Title: Drilling machines
IPC: B25D9/26
Filed: 1969-06-09
Abstract: 1322493 Rock drills VICTOR PRODUCTS (WALLSEND) Ltd 8 Sept 1970 [9 June 1969] 22529/69 Heading B3C A rock and like drilling machine comprises an hydraulic motor 10, for rotating the drill rod, and an hydraulic ram 12 for feeding the rod, a torque sensor 152 sensitive to the pressure of fluid supplied to motor 10 so as to sense the torque on the drill rod, and a thrust control valve 150 which controls the flow of hydraulic fluid to the ram in response to the pressure sensed, and which is able to reverse the fluid pressure being supplied to the ram if the torque on the drill rod exceed a predetermined value P. Hydraulic fluid is supplied at P and splits into lines 25, 26, 27. In the operative positions of three-position reversing valves 14, 16, the fluid passes along line 27 and by a line 18 to sump 19. Flow along line 26 is interrupted by valve 14, and flow along line 25 passes through thrust control device 150, and hence to a line 20, where the flow is interrupted by valve 16. Flow along line 26 passes to motor 10, back along line 28, and thence via device 150, to sump 19. Flow along line 20 passes to ram 12, back along line 29, and thence via device 150 to sump 30. Device 150 includes a three-position spool 151 which is maintained in its mid position, as shown, during normal operation of the drilling machine, by a balance of forces between the torque sensor 152 and a manually adjustable spring 153. Should the thrust become excessive sensor 152 gradually moves spool 151 so that its reverse-flow position b becomes progressively operative. This first causes a gradual throttling of the flow along lines 25, 20, to ram 12, and then shuts it off completely. Further movement of the spool starts the reverse flow, which is throttled less and less as the torque rises further, leading to an increasing reversal of the thrust applied by ram 12 to the drill rod. To prevent the ram from being starved of fluid when there is little or no load on motor 10, sensor 152 responds to the reduced pressure in line 24, and allows spring 153 to move spool 151 towards the a position so as to throttle the return flow from motor 10. Therefore the pressure in line 24 cannot fall below the value determined by spring 153.
Patent GB-1326781-A (GB)
Title: Process for the manufacture of 4-chloro derivatives of phenyl formamidines and their salts
Filed: 1970-08-28
Abstract: 1326781 4-Chloro phenyl formamidines SCHERING AG 28 Aug 1970 [30 Aug 1969] 41516/70 Heading C2C 4-Chlorophenyl formamidines of the formula in which R is a hydrogen atom or an alkyl radical and R 1  and R 2  each represents a hydrau gen atom or an aliphatic hydrocarbon radic with the proviso that R 1  and R 2  are not simultaneously hydrogen atoms, or a salt thereof, are prepared by reacting the appropriate N,N-di- (R 1 R 2 )-N<SP>1</SP>-(2-R-phenyl) formamidine in an inert liquid, such as water, an alcohol or glacial acetic acid, with chlorine or with an agent capable of liberating chlorine under the reaction conditions, e.g. tert-butyl hypochlorite, optionally in the presence of a catalyst, such as ferric chloride, and, if desired, converting the resulting amidine salt into the free amidine by treatment with a base. N,N - dimethyl - N<SP>1</SP> - phenyl formamidine hydrochloride was prepared from aniline, dimethyl formamide and phosphorus oxychloride.
Patent GB-1330408-A (GB)
Title: Microwave power-divider
IPC: H01P5/16
Filed: 1971-04-26
Abstract: 1330408 Microwave power dividers MULLARD Ltd 23 June 1972 [26 April 1971] 11370/71 Heading H1W A microwave power divider comprises an input branch A, two output branches B, C each connected to the input by a series of quarter wavelength sections F, G, H, J of differing characteristic impedance and a resistive region N connecting the two series of sections F to J except adjacent the input branch A. The resistive region N consists of a nickel-chromium alloy layer on an alumina substrate S and the power carrying branches are a superimposed layer of gold. The other major face of the substrate has a copper ground plane.
Patent GB-1333261-A (GB)
Title: Rotary instruments for indicating linear measurements
IPC: B23Q17/22
Filed: 1971-01-05
Abstract: 1333261 English/metric indicators BRITISH AIRCRAFT CORP Ltd 5 Jan 1971 [5 Jan 1970] 491/70 Addition to 1233447 Heading B3T The invention relates to a modification of the rotary instrument described in parent Specification 1,233,447, and is directed to means for clamping the third component (ring gear) 3 to one of the other components (e.g. sun gear) 4 which means comprises interengaging projections and recesses (teeth or splines) 9 on the respective components and which can be engaged or disengaged by shifting the third component 3 axially.